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LCM of 455, 117, 338 is________?

Correct answer: B. 106470

  • A. 10670
  • B. 106470
  • C. 104670
  • D. 107470

Explanation

Factor the numbers: 455 = 5 x 7 x 13, 117 = 3^2 x 13, and 338 = 2 x 13^2. Their LCM is 2 x 3^2 x 5 x 7 x 13^2 = 106470. The likely distractor is 10670, which omits a factor and therefore is not divisible by all three numbers.

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